No. Accepted answers are noted on the initial topic.
For your Q&A section on your site, consider the Discourse WordPress Plugin.It’s really easy to set up.
Questions would be published on your WP site. The Question and Answers would be in Discourse. Doesn’t really solve your current question, but one less Q&A plugin to deal with and the content would all be in Discourse.
For questions to the OP, the OP could just quote the question and answer as a reply.
[quote=“Sara_Noel, post:3, topic:53388”]
In an ideal world, a question could be posed to anyone in the thread, but for starters, I just want a question to be able to be posed to the original poster with a Post Reply and Ask OP a Question button and have it display in an organized way. [/quote]
This is pretty much how Discourse works. The Reply button at bottom replies to OP. Each post has its own Reply button.
For organization/display, there were prior discussions related to AMAs:
Using tags to designate, group, or display the questions/answers might help.
That’s all I can think of. I haven’t had enough coffee.